Distillation studies in a two-stage counter-current rotating packed bed

2013 ◽  
Vol 102 ◽  
pp. 62-66 ◽  
Author(s):  
Guang-Wen Chu ◽  
Xin Gao ◽  
Yong Luo ◽  
Hai-Kui Zou ◽  
Lei Shao ◽  
...  
Keyword(s):  
Packed Bed ◽  
Two Stage ◽  
Rotating Packed Bed ◽  
Counter Current

Characteristics of a two-stage counter-current rotating packed bed for continuous distillation

2012 ◽  
Vol 52 ◽  
pp. 55-62 ◽  
Author(s):  
Yong Luo ◽  
Guang-Wen Chu ◽  
Hai-Kui Zou ◽  
Yang Xiang ◽  
Lei Shao ◽  
...  
Keyword(s):  
Packed Bed ◽  
Two Stage ◽  
Rotating Packed Bed ◽  
Counter Current ◽  
Continuous Distillation

Insights into Thermal Transactions of a Novel Rotating Packed Bed

2021 ◽  
pp. 1-24
Author(s):  
Saurabh Kumar ◽  
Sandeep Kumar ◽  
D. S. Murthy
Keyword(s):  
Heat Transfer ◽  
Packed Bed ◽  
Volume Reduction ◽  
The Novel ◽  
Rotating Packed Bed ◽  
Main Effect ◽  
Multi Phase Flow ◽  
Computational Fluid Dynamics Cfd ◽  
Multi Phase ◽  
Counter Current

Abstract The field of rotating packed bed (RPB) and its applications in the transfer processes are multidisciplinary in nature. Achievement of significant volume reduction by employing the RPB in distillation towers has been fairly established in the mass transfer domain. Nevertheless, the prospect of RPB in the heat transfer domain still remains dormant. The current work addresses this very issue by exploring the characteristics of thermal transactions across the novel RPB device. This study succinctly presents the related aspects with multi-phase flow of participating fluids in the counter-current direction across the porous, rotating packed bed structure. However, the simultaneous involvement of these multivariate intrinsic attributes makes the understanding of the transfer phenomenon quite complex upon viewing from the experimental perspective alone. Hence, computational fluid dynamics (CFD) tool has been used for assimilation of the physical understanding of the thermal transactions along with the effects of operating parameters. The thermal contours, main effect and surface plots for heat transfer rate directly contribute towards better appreciation of the thermal transaction mechanism and could be employed for suitable volume reduction in heat exchanger devices.

Numerical Simulation of Counter-Current Flow Field in Double Packing Rotating Packed Bed

2013 ◽  
Vol 561 ◽  
pp. 672-676
Author(s):  
De Dong Hu ◽  
Wen Yan Shan ◽  
Guang Wei Zhu
Keyword(s):  
Flow Field ◽  
Fluid Dynamic ◽  
Internal Flow ◽  
Packed Bed ◽  
Liquid Distribution ◽  
Rotating Speed ◽  
Rotating Packed Bed ◽  
Flow Experiment ◽  
Mass Transfer Equipment ◽  
Counter Current

The rotating packed bed is a new and effective mass transfer equipment. However, because of the complexity fluid flow inside the RPB, the flow experiment are not easy to lead to the deeper understanding on the fluid dynamic in an RPB. To explore the internal flow field distribution of rotating packed bed , the internal flow field in counter-current double packing rotating packed bed was studied. At the same time, the flow field changes in different rotating speed was compared and the liquid distribution between the two layer of packing was performanced.

A two-stage blade-packing rotating packed bed for intensification of continuous distillation

2016 ◽  
Vol 24 (1) ◽  
pp. 109-115 ◽  
Author(s):  
Yong Luo ◽  
Guangwen Chu ◽  
Le Sang ◽  
Haikui Zou ◽  
Yang Xiang ◽  
...  
Keyword(s):  
Packed Bed ◽  
Two Stage ◽  
Rotating Packed Bed ◽  
Continuous Distillation

COMBUSTION BEHAVIOR OF LUMPY COKE IN PACKED BED IN A COUNTER CURRENT AIR FLOW

2018 ◽  
Author(s):  
Bassem Hallak ◽  
N. Linn ◽  
Eckehard Specht ◽  
Fabian Herz
Keyword(s):  
Air Flow ◽  
Packed Bed ◽  
Combustion Behavior ◽  
Counter Current

Theoretical analysis of counter-current absorption of a poorly soluble gas based on the PDE-AD model

1986 ◽  
Vol 51 (6) ◽  
pp. 1222-1239 ◽  
Author(s):  
Pavel Moravec ◽  
Vladimír Staněk
Keyword(s):  
Experimental Data ◽  
Liquid Phase ◽  
Gas Phase ◽  
Transfer Functions ◽  
Packed Bed ◽  
Packed Bed Column ◽  
Interfacial Transport ◽  
Gaseous Component ◽  
Poorly Soluble ◽  
Counter Current

Expression have been derived in the paper for all four possible transfer functions between the inlet and the outlet gas and liquid steams under the counter-current absorption of a poorly soluble gas in a packed bed column. The transfer functions have been derived for the axially dispersed model with stagnant zone in the liquid phase and the axially dispersed model for the gas phase with interfacial transport of a gaseous component (PDE - AD). calculations with practical values of parameters suggest that only two of these transfer functions are applicable for experimental data evaluation.

An experimental study of gas phase back mixing under the counter-current gas-liquid flow on a vertical expanded metal sheet packing by static tracer technique

1980 ◽  
Vol 45 (1) ◽  
pp. 214-221
Author(s):  
Jan Červenka ◽  
Mirko Endršt ◽  
Václav Kolář
Keyword(s):  
Gas Phase ◽  
Flow Model ◽  
Plug Flow ◽  
Packed Bed ◽  
Metal Sheet ◽  
Concentration Profiles ◽  
Expanded Metal ◽  
Gas Liquid Flow ◽  
Counter Current ◽  
Back Mixing

Gas phase back mixing has been measured in a column packed with vertical expanded metal sheet under the counter-current flow of gas and liquid by the static method using a tracer. The observed experimental concentration profiles has not confirmed our earlier proposed model of back mixing, based on the concentration profiles in absorption runs. These profiles do not even conform with the axially dispersed plug flow model currently used to describe axial mixing in packed bed columns. The concentration profiles may be described by a combination of the axially dispersed plug flow model with back flow.

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